Scraping tool handle



y 1933. s. M. BOOKMAN I 1,917,490

SCRAPING TOOL HANDLE Filed June 15, 1929 WW Mmm-llmw" In ll I INVENTOR Patented July '11, 1933 sinus: 1a. IBOQKMAN, on NEW YORK, N. v.

se ame Toot HANDLE 7 Application filed June 15,

This invention relates to improvements in scraping tool handles, more specifically-for scrapers with removable or exchangeable scraping media.

This invention relates to steel wool scrapers such as are used for household purposes, for cleaning pots, pans, kettles and so forth.

It will howeveig'become' evident from the description that the application of this in- 10 vention is not limited to the steel wool which is assumed as an ordinary example ,of' a scraping medium, a great many other substances maybesubstituted, and the application will cover various industrial or'inore general usages: cleaning, scraping, removing old paint, polishing, scratching of plaster walls, etc; I l 1 This invention aims especially, at various improvements in the construction of similar scraping tools'for which former application for U; SJpatent, submitted by the applicant, is presently pending under Ser-ial' Nu111bei"37O,el46 filed J une'12, 1929, andwhile therefore the different general" objects of this invention are in the main identical with those of the prototypes, there are a'few spee cific objects to be mentionedin connection withthe present improvements."

The primary specific object is to provide 0 a scraping tool witha detachable handle of j I simple and inexpensive construction which is easily removable. I 1 l i 'The second object is to procure a connec-' tion between the partto be rigidly attached to the scraping medium and" the handle, which resilient and, though'pliable and yielding to manual strain, automatically tends to restore the handle into a certain rel- With these objects in view, the

1929. Serial at. 371,246.

consists in the construction, combination and arrangement of parts hereinafter described and illustrated in the accompanying drawing in Which:

v Figure 1 isja top view ofthe han-dle and v the top shield of the scraping tool. 1

Figure is a sectional view along the line 22 of Fig. 1. The scraping medium, i. 'e.

v the t uft of steel wool," the clamping parts, v

and the tightening screw, being elements al- '7",

, ready fully described and detailed in the for- Figure 3 shows a modification of the top shield construction. i V

Figure 4 1s a partial section along the line 4+4: on Figure 3 on an enlarged scale The flat top shield or-outer clamping plate,

ialf-round lugs 11" (Fig. 1).

The handle itself consists of the haft15 and the stem .13. flat piece ofsheet'metal bent into achannel form. The two downwardly extending legs of the channehshaped section are indicated by 13a. They increase in 'width toward the point where the-'stem'is pivoted to the top shield, so thatnear the bearing point 'the handle has its greatest strength. The extreme ends "of the legs" form here two lugs 130 corresponding and fitting in between the aforesaid shield lugs 11, and the two pairs are perforated in alignment to receive a pivot 12, riveted over at each end, so to form a close fitting, yet rotatable joint between the shield and the handle.

At 136 th e legs of the channel 13 are shaped with an obtuse angle, so as to form alimit stop for the handle.

vA spiral spring 16 is wound around the. pivot in such way that one free end 16?) is handleand is provided withtwo upright The'latter is formed of, a1

held part in a'pinhole formed for this purpose through the rear end of the shield 10, while the other end 16a, is clamped over the top of 13, which forms the back of the channel, as described.

The spring is strained in such a way that it aims to turn the handle into the same horizontal plane as the top shield in which direc tion it is limited by the stops 13b. The upper tapered and reduced end of the stem is compressed into a rounded form l l-and fixed. 1y inserted into the haft 15. I

The shield 10 is punched out at four places, diametrically and equally distanced from its center, at from each other. The punching forms a triangular lobe or barb 17, cutting two sides of the lobe, 17b17b and bending the cut-out lobe downwards around its third edge 17a. In this way three triangular barbs are formed which are adapted to take a grip on the compressed steel wool or whatever substitute may be chosen for it, below the top shield.

The two free edges 17d (Fig. 2) of the fourth cut-out, near the handle, are buckled up and in this way form areinforcement of p the shield, where it is most needed.

The center of the shield is drilled to re ceive the screw 20, which element, and the other accessory parts, showndotted, are described in the former application and will only be briefly referred to. Between thelnner clamping plate or disk 19 and the top shield 10 the steel wool 18, consisting of a round pad, placed underneath the disk and folded tightly over the serrated flange 23 and between the barbs 17 and the inner concave portion of 19, is clamped tightly by means of the screw 20 and the tightening nut 21.

It is obvious from the former description that the handle 13 can manually be placed at right angles to the shield and the steel wool pad, so that, when the scraper tool is inserted into a cylindrical vessel of small diameter and considerable depth, for instance a deep pot, the padded portion can be pressed flat against the bottom, the spring tending to keep it evenly and forcibly in touch with it, irrespectively of the irregular sidewardmovements of the handle. Figure 3 showsa modification of the top shield. In this combinationit is supposed that the clamping of the steel wool is accomplished in the manner described in the for mer application, i. e. by the clamping screw 20 with nut 21, the bottom disk 19 (not shown) and a top disk 24.. The top shield 27 in this case is therefore independently removable and is attached to the top disk 24 by three catches 28 (Fig. 4) which enter into slots 29 of the top disk where they are screwed in the manner of a bayonet joint by turning the shield a trifle in relation to the disk, so

as to bring the catches underneath the disk.

The lobes forming the catches are punched out of the shield and bent downwards and forwards again with an alternate kink, as

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

V 1. In a device of the character described, an outer clamping plate, an inner clamping plate detachably connected to said outer clamping plate and spaced from the latter, a pad of pliable scraping material clamped between said inner and outer clamping plates, projecting ears on one edge of said outer clamping plate, a handle pivotally connected to, said ears, an abutment surface on said handle cooperating with said outer clamping plate for maintaining said handle substantially at an angle to said outer clamping plate, and a spring holding the abutment surface against the outer clamping plate.

2. In a device of the character described, an outer clamping'plate, an inner clamping plate detachably connected to said outer clamping plate and spaced from the latter, a pad of pliable scraping material clamped between said inner and outer clamping plates, a plurality of downwardly projecting barbs integral with said outer clamping plate and extending into said pad of scraping material to prevent the latter from shifting laterally, a handle pivotally connected to said outer clamping plate, an abutment surface on said handle cooperating with said outer clamping plate for preventing the handle from moving downwardly into a position parallel to said outer clamping plate, and a spring holding the abutment surface against the outer clamping plate. 7 v

' SIDNEY M. BOOKMAN. 

